18-year-old Hammaad Munshi has been sentenced to two years in a juvenile detention centre, making him the youngest person to be charged, tried and sentenced under Britain’s Terrorism Act.

Munshi was arrested after police found a guide to making napalm on his computer, and because he was associating with Aabid Khan, someone described as a “key player” in using the Internet to promote Islamic extremism.

The barrister representing Munshi said that the boy had been viewing the bomb- and napalm-making guides out of curiosity, a claim police have denied.